Abstract: A method of checking status of a mobile station in sleep mode is provided. The method includes receiving a SLP-REQ message from the mobile station; transmitting a SLP-RSP message in response to the SLP-REQ message, the SLP-RSP message including a first periodic ranging time frame offset indicating when the mobile station transmits a ranging request message; receiving the ranging request message which the mobile station transmits during a time period indicated by the first periodic ranging frame offset; and transmitting a ranging response message in response to the ranging request message, the ranging response message including information required for performing a ranging process, wherein the ranging response message further includes a second periodic ranging time frame offset if the mobile station transmits the ranging request message additionally.

Abstract: Contents delivery to a mobile node which changes its existence position is executed from a delivery node with a high quality. Each cache server is located between each wireless LAN in which the mobile node can exists and a wired network. Each cache server delivers contents from the delivery node to the mobile node while storing the contents into a buffer. When the mobile node has moved, the mobile node transmits a moving notice to a cache server which is connected to a wireless LAN of the moving destination. Having received the moving notice, the cache server acquires the content in the buffer from a cache server which the mobile node had utilized before the moving. This configuration allows retransmission of the contents to the mobile node, thereby resulting in an enhancement in the delivery quality.

Abstract: Systems, methods, and computer readable media are provided for automating the process of provisioning and maintaining Access Point Names (“APNs”) for use in digital networks, such as GPRS networks. A plurality of network elements including but not limited to GGSN tables, router tables, firewall systems, VPN tunnels, and Home Location Registry (“HLR”) tables can be provisioned and maintained via a centralized system. The invention integrates centralized logging of provisioning, maintenance, and access events, as well as acknowledgement from provisioned network elements, for enhanced security, reporting, and troubleshooting. The invention thus ensures accuracy and reduces operational costs of integrating mobile communications systems with digital networks.

Abstract: An apparatus and methods are provided for sharing cell coverage information among devices in a cell network. Cell coverage information includes bitmap models of signal strength to enable intelligent handover decisions. Mobile terminals are able to receive cell coverage information over a broadband unidirectional broadcast network, such as a digital video broadcast network. They are also able to receive cell coverage information from other mobile terminals via ad hoc wireless signalling. Mobile terminals are also able to store and upload raw signal measurements to a cell coverage information center.

Abstract: An indoor local area network (LAN) system using an ultra wide-band (UWB) communication system is provided. The indoor LAN system includes at least one remote terminal including a UWB module for converting input digital data to be transmitted into an analog signal of an ultra wide-bandwidth and wirelessly transmitting the converted analog signal via an antenna of the remote terminal. The UWB module receives an analog signal of the ultra wide-bandwidth via the antenna and converts the received analog signal into a digital signal. The indoor LAN system further includes at least one access point for performing USB-based wireless communication with the remote terminal in a corresponding area. The access point is adapted to receive the analog signal of the ultra wide-bandwidth transmitted from the remote terminal and convert the received analog signal into an optical signal.

Abstract: A position calculation method includes a step of calculating error degradation quantities about respective measurement results (“distance-ranging results”) on distances between respective reference stations and a detection-target station from the respective distance-ranging results and positions of the respective reference stations, a step of calculating weight-assigning factors about the respective distance-ranging results based on the respective error degradation quantities, a step of checking the number of valid distance-ranging results, and a step of calculating the position of the detection-target station based on the respective distance-ranging results, the positions of the respective reference stations, and the respective weight-assigning factors.

Abstract: A message distribution system which distributes messages for transmission/reception between mobile terminals, comprising: a message distribution server which receives a message transmitted from one of the mobile terminals and distributes the message to the mobile terminal on a receiving side; and a library server which includes: a data storage unit storing a plurality of content data corresponding to a keyword; and a control circuit which executes a search to determine matching with the keyword stored in the data storage unit by using a word contained in a body of the message as a key upon a request from one of the message distribution server and the mobile terminal; extracts, when the word matches the keyword, all content data corresponding to the keyword from the data storage unit, and extract content data similar to predetermined condition information from the extracted content data; and embeds the extracted content data similar to the condition information in the message.

Abstract: Methods and apparatus are presented herein for allowing a wireless communication device to perform a proxy authentication on behalf of a tethered device.

Abstract: A method of performing a ranging process between a base station and a mobile station in sleep mode in a wireless access system, wherein the base station provides the mobile station with an initial notification of a periodic ranging time that occurs during a sleep time interval and during which the mobile station is to perform the ranging process, the initial notification included in a first message indicating whether the mobile station should terminate sleep mode to receive downlink data, and wherein the base station provides the mobile station with subsequent notifications of periodic ranging times that occur during the sleep time interval, the subsequent notifications indicated in a second message, the second message transmitted to the mobile station as part of the ranging process such that the mobile station performs a plurality of ranging processes within the sleep time interval.

Abstract: A network including a connection service providing system according to the present invention comprises mobile terminals 1 used by users, electronic devices 3, a wireless LAN base station 5, a connection-service-providing server 10, public network 2 for interconnecting a mobile terminal 1 and the connection-service-providing server 10, and a wide area network 4 for interconnecting a electronic device 3 and the connection-service-providing server 10. The connection-service-providing server 10 comprises a first identifier-acquisition unit 11, identifier-acquisition-time-instant measurement unit 12 (first time measurement unit), a second identifier-acquisition unit 13, a service-provision-start-time-instant measurement unit 14 (second time measurement unit), an authentication unit 15, and a connection control unit 16.